Bone conduction earphone

Abstract

The utility model provides a bone conduction earphone. The bone conduction earphone comprises an FPC module, a detection module and a control module, the detection module is connected with the FPC module, and the detection module is used for obtaining the wearing state and generating a corresponding detection signal; the control module is connected with the detection module and the FPC module, and the control module is used for receiving the detection signal from the detection module and adjusting the working state of the bone conduction earphone based on the detection signal. The detection module in the bone conduction earphone can accurately detect the wearing state and automatically control and switch the working state of the bone conduction earphone based on the detection signal, the response speed is high, a user does not need to manually press a corresponding key to realize a playing or pausing function, the operation steps are simplified, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and more particularly, to a bone conduction headset. Background Art

[0002] Bluetooth headsets have replaced wired headsets and are widely used in various fields due to their convenience. Among them, bone conduction headsets adopt an ear-hook design, which is more comfortable for users to wear.

[0003] However, when a user needs to play or pause while wearing bone conduction headphones, the user is usually required to manually press the corresponding button to achieve the play or pause function, which is complicated to operate and the user experience is poor. Utility Model Content

[0004] To solve the above problems, the present application provides a bone conduction headset, which aims to solve the problem that the current bone conduction headset has complicated operations and poor user experience when switching the play and pause functions.

[0005] In a first aspect, the present application provides a bone conduction headset, comprising an FPC module, a detection module, and a control module; the detection module is connected to the FPC module, and the detection module is used to obtain a wearing status and generate a corresponding detection signal; the control module is connected to the detection module and the FPC module, and the control module is used to receive a detection signal from the detection module, and adjust the working state of the bone conduction headset based on the detection signal.

[0006] Based on the bone conduction headphones provided in the embodiments of the present application, the detection module can detect the user's wearing status in real time. When it is detected that the bone conduction headphones are being worn, the control module can control the bone conduction headphones to be in the play state. When it is detected that the bone conduction headphones are being taken off, the control module can control the bone conduction headphones to be in the pause state. The detection module can accurately detect the wearing status of the bone conduction headphones, and automatically control and switch the working state of the bone conduction headphones based on the detection signal. The response speed is fast, and the user does not need to manually press the corresponding button to realize the play or pause function, which simplifies the operation steps and thus improves the user experience.

[0007] In one possible design, the FPC module includes a board body and a sampling unit, the sampling unit is fixed on the board body, the sampling unit is connected to the detection module, and the detection module is used to obtain the wearing status through the sampling unit.

[0008] Based on the above optional method, the sampling unit is located at a position on the plate close to the user's skin. The detection module can obtain the user's wearing status through the sampling unit, and by setting the sampling unit, the detection reliability and accuracy of the detection module can be improved, thereby improving the reliability of the control module in automatically controlling and switching the working status of the bone conduction headphones.

[0009] In a possible design, the sampling unit includes a sampling matrix, the sampling matrix includes a plurality of sampling points arranged in an array on the board, and the plurality of sampling points are connected.

[0010] Based on the above optional method, the detection module can obtain the user's wearing status through multiple sampling points, and by setting multiple sampling points, the sampling contact area is increased, thereby improving the detection reliability and accuracy of the detection module, thereby improving the reliability of the control module to automatically control and switch the working status of the bone conduction headphones.

[0011] In a possible design, the sampling matrix is ​​made of copper foil.

[0012] Based on the above optional methods, copper foil has better conductivity, better flexibility, lower cost and better thermal conductivity. The sampling matrix using copper foil can achieve better sampling effect at lower cost.

[0013] In a possible design, the detection module includes a detection chip having a test pin and a reference pin. The test pin of the detection chip is connected to the sampling unit, and the reference pin of the detection chip is connected to the board.

[0014] In one possible design, the bone conduction earphones also include a connection module, a first end of the connection module is connected to the board body, a second end of the connection module is connected to the reference pin of the detection chip, a third end of the connection module is connected to the sampling unit, and a fourth end of the connection module is connected to the test pin of the detection chip.

[0015] In one possible design, the connection module includes a reference channel and a detection channel arranged at intervals along a first direction; one end of the reference channel is connected to the board body, and the other end of the reference channel is connected to the reference pin of the detection chip; one end of the detection channel is connected to the sampling unit, and the other end of the detection channel is connected to the test pin of the detection chip.

[0016] In a possible design, the distance between the reference channel and the detection channel along the first direction is 0.06-0.08 mm.

[0017] In a possible design, the detection chip model is LS_IC_AW93208CSR.

[0018] Based on the above optional methods, the LS_IC_AW93208CSR detection chip can support capacitive touch detection, and can identify single-point or multi-point touch, has high-sensitivity touch detection capabilities, can accurately detect touch operations in various environments, and has low power consumption. It can support multiple communication interfaces such as the inter-integrated circuit bus and serial peripheral interface, facilitating data exchange with the control module.

[0019] In one possible design, the bone conduction earphones further include a shell, a housing is formed inside the shell, and the FPC module, the detection module and the control module are all located in the housing cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the module structure of a bone conduction headset provided in an embodiment of the present application;

[0021] Figure 2 This is a schematic diagram of the module structure of another bone conduction headset provided in an embodiment of the present application;

[0022] Figure 3 This is a structural diagram of a bone conduction headset provided in an embodiment of the present application;

[0023] Figure 4 This is a schematic structural diagram of another bone conduction headset provided in an embodiment of the present application;

[0024] Figure 5 This is a schematic diagram of the decomposed structure of an FPC module provided in an embodiment of the present application;

[0025] Figure 6 This is a structural diagram of an FPC module provided in an embodiment of the present application;

[0026] Figure 7 This is a schematic diagram of the circuit structure of a bone conduction headset provided in an embodiment of the present application;

[0027] Figure 8 This is a schematic diagram of the circuit structure of another bone conduction headset provided in an embodiment of the present application;

[0028] Figure 9 This is a schematic diagram of the partial structure of a bone conduction headset provided in an embodiment of the present application;

[0029] Figure 10 This is a partial structural diagram of another bone conduction headset provided in an embodiment of the present application.

[0030] Among them, the reference numerals in the figures are:

[0031] 1. Bone conduction earphones; 11. Housing; 12. FPC module; 121. Board; 121A. First surface; 121B. Second surface; 122. Sampling unit; 1221. Sampling matrix; 1221A. Sampling points; 123. Reference matrix; 123A. Reference points; 13. Control module; 14. Detection module; 15. Connection module; 151. Reference channel; 152. Detection channel; 153. First grounding unit; 154. Second grounding unit.

[0032] U, detection chip; R, resistance; C, capacitance; AA, first direction. DETAILED DESCRIPTION

[0033] In the following description, specific details such as specific system structures and technologies are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, and circuits are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0034] Bluetooth headsets, due to their convenience, have replaced wired headsets in a wide range of applications. Bluetooth headsets typically feature antennas, such as steel antennas or flexible printed circuit (FPC) antennas, which transmit and receive electromagnetic wave energy. Specifically, the antenna can effectively convert high-frequency current energy into electromagnetic wave energy for transmission, and also convert received electromagnetic wave energy into high-frequency current. Bone conduction headphones, on the other hand, use an over-the-ear design, transmitting sound directly to the inner ear through the cheekbones without contacting the ear canal. This reduces the risk of ear canal infection and provides increased wearing comfort.

[0035] However, bone conduction headphones do not have a wearing detection function. That is, when a user needs to play or pause while wearing bone conduction headphones, the user is usually required to manually press the corresponding button to achieve the play or pause function. The operation is complicated and the user experience is poor.

[0036] To this end, the present application provides a bone conduction headset, in which the detection module can accurately detect the wearing status and automatically control and switch the working status of the bone conduction headset based on the detection signal. The response speed is fast, and the user does not need to manually press the corresponding button to realize the play or pause function, which simplifies the operation steps and improves the user experience.

[0037] The bone conduction headphones provided in this application are exemplarily introduced below with reference to the accompanying drawings.

[0038] like Figure 1 As shown, the bone conduction earphone 1 provided in the embodiment of the present application includes a shell 11, an FPC module 12 and a control module 13. A accommodating cavity is formed inside the shell 11. The FPC module 12 and the control module 13 are both located in the accommodating cavity. The accommodating cavity is also used to accommodate other structures (such as power supply circuits, charging circuits, audio circuits and other structures).

[0039] Among them, the FPC module 12 is connected to the control module 13. After receiving the audio signal, the control module 13 will process the audio signal and generate a corresponding drive signal, which is transmitted to the vibration module set inside the bone conduction earphone 1 through the FPC module 12, so that the bone conduction earphone 1 can achieve the corresponding audio playback. At the same time, the operation instructions (such as volume adjustment, play / pause) issued by the user through the buttons or touch panel on the bone conduction earphone 1 are transmitted to the control module 13 through the FPC module 12. The control module 13 will process these operation instructions and control the corresponding components through the FPC module 12 to achieve the corresponding functions. Here, it is worth noting that the audio signal comes from an electronic device (such as a mobile phone, computer, etc.), that is, the bone conduction earphone 1 is usually equipped with a Bluetooth module. The user connects to the electronic device through the Bluetooth module, and the electronic device sends the audio signal to the Bluetooth module in the bone conduction earphone 1.

[0040] In order to enable the bone conduction earphone 1 provided by the present application to realize the automatic switching function to improve the user experience, in one example, Figure 2 As shown, the bone conduction earphone 1 also includes a detection module 14, which is connected to the FPC module 12 and the control module 13. The detection module 14 is used to obtain the wearing status and generate a corresponding detection signal. The control module 13 is used to receive the detection signal from the detection module 14 and adjust the working state of the bone conduction earphone 1 based on the detection signal, wherein the working state includes a play state and a pause state.

[0041] In this example, the wearing status refers to whether the user is wearing the bone conduction earphones 1. When the user is wearing the bone conduction earphones 1, the wearing status at this time refers to that the bone conduction earphones 1 are worn, and the detection signal generated by the detection module 14 accordingly refers to that the bone conduction earphones 1 are worn, and the control module 13 controls the bone conduction earphones 1 to play based on the detection signal; when the user is not wearing the bone conduction earphones 1, the wearing status at this time refers to that the bone conduction earphones 1 have been taken off, and the detection signal generated by the detection module 14 accordingly refers to that the bone conduction earphones 1 have been taken off, and the control module 13 controls the bone conduction earphones 1 to pause based on the detection signal.

[0042] It is worth noting that the control module 13 adjusts the operating state of the bone conduction earphone 1 based on the detection signal and the received audio signal. For example, when the control module 13 receives a playback audio signal and the detection signal indicates that the bone conduction earphone 1 is being worn, the control module 13 controls the bone conduction earphone 1 to enter the playback state. When the control module 13 does not receive a playback audio signal, but the detection signal indicates that the bone conduction earphone 1 is being worn, the control module 13 does not control the bone conduction earphone 1 to enter the playback state. Furthermore, when the control module 13 continues to receive a playback audio signal, the control module 13 controls the bone conduction earphone 1 to enter the playback state while the user is wearing the bone conduction earphone 1. If the user then removes the bone conduction earphone 1, the detection signal indicates that the bone conduction earphone 1 has been removed, and the control module 13 controls the bone conduction earphone 1 to enter the pause state. If the user then puts on the bone conduction earphone 1 again, the detection signal generated again indicates that the bone conduction earphone 1 is being worn, and the control module 13 controls the bone conduction earphone 1 to enter the playback state to ensure normal user use.

[0043] In this way, the detection module 14 can perform real-time detection of the user's wearing status. When it detects that the bone conduction earphone 1 is being worn, the control module 13 can control the bone conduction earphone 1 to be in the play state. When it detects that the bone conduction earphone 1 has been taken off, the control module 13 can control the bone conduction earphone 1 to be in the pause state. The detection module 14 can accurately detect the wearing status of the bone conduction earphone 1 and automatically control and switch the working state of the bone conduction earphone 1 based on the detection signal. The response speed is fast and the user does not need to manually press the corresponding button to realize the play or pause function, which simplifies the operation steps and improves the user experience. Secondly, this application does not change the performance of the vibrator, thereby ensuring the normal use of the bone conduction earphone 1.

[0044] In one example, if Figure 3 As shown, the FPC module 12 may include a plate body 121 and a sampling unit 122. The sampling unit 122 is fixed to the plate body 121 and connected to the detection module 14. The detection module 14 is configured to obtain the wearing status through the sampling unit 122. In this example, the sampling unit 122 is located near the user's skin on the plate body 121. The detection module 14 can obtain the user's wearing status through the sampling unit 122. The provision of the sampling unit 122 can improve the detection reliability and accuracy of the detection module 14, thereby improving the reliability of the control module 13 in automatically controlling and switching the working status of the bone conduction earphone 1.

[0045] In order to improve the sampling effect of the sampling unit 122 and further improve the detection effect of the detection module 14, in one example, Figure 4As shown, the sampling unit 122 includes a sampling matrix 1221, and the sampling matrix 1221 includes a plurality of sampling points 1221A arranged in an array on the plate 121, and the plurality of sampling points 1221A are connected. The detection module 14 can obtain the user's wearing status through the plurality of sampling points 1221A, and by setting the plurality of sampling points 1221A, the sampling contact area is increased, thereby improving the detection reliability and accuracy of the detection module 14, thereby improving the reliability of the control module 13 in automatically controlling and switching the working status of the bone conduction headset 1.

[0046] It is worth noting here that the specific number of sampling points 1221A can be set according to actual needs. For example, if you want to improve sampling reliability, you can set the spacing between each sampling point 1221A to be smaller, so as to set more sampling points 1221A, so that the array composed of multiple sampling points 1221A is denser, thereby improving sampling reliability; if you want to save production costs, you can set the spacing between each sampling point 1221A to be larger, so as to set fewer sampling points 1221A, thereby reducing production costs. The specific number can be set according to actual needs, and this application does not impose any specific restrictions on this.

[0047] Optionally, the sampling matrix 1221 composed of a plurality of sampling points 1221A arranged in an array may be as follows: Figure 4 In the oblique grid structure shown, in this example, the line between each adjacent sampling point 1221A can be 0.1 mm (millimeter), that is, the spacing between each adjacent sampling point 1221A can be 0.1 mm. The sampling matrix 1221 can also adopt a right-angled grid structure. Compared with the right-angled grid structure, the oblique grid structure can effectively cover most areas. It can be set according to actual needs. This application does not impose specific restrictions on this.

[0048] Optionally, the sampling matrix 1221 is made of copper foil, which has better electrical conductivity, better flexibility, lower cost, and better thermal conductivity. The sampling matrix 1221 uses copper foil to achieve better sampling effects at a lower cost.

[0049] The board 121 provided in this application is a printed circuit board (PCB), please refer to Figure 5 and Figure 6As shown, the board 121 provided in the present application includes a first surface 121A and a second surface 121B arranged opposite to each other, wherein the first surface 121A is the top surface (i.e., the TOP surface), and the sampling matrix 1221 is fixed to the first surface 121A. The first surface 121A can also be installed with wiring of other electronic components and signal lines; the second surface 121B is the bottom surface (i.e., the BOT surface), and the second surface 121B is mainly used for welding and wiring (especially the wiring of power and ground lines). Specifically, a reference matrix 123 can be provided on the second surface 121B, and the reference matrix 123 includes a plurality of reference points 123A arranged and connected in an array. The reference matrix 123 corresponds to the position and shape of the sampling matrix 1221. The connecting line between each adjacent reference point 123A can be 1.4 mm, that is, the spacing between each adjacent reference point 123A is 1.4 mm. This distance enables the reference matrix 123 on the second surface 121B to be located below the sampling matrix 1221.

[0050] In one example, if Figure 7 As shown, the detection module 14 includes a detection chip U, which is a chip configured with multiple pins, and the multiple pins include at least a test pin (such as Figure 7 "CS0") and the reference pin (as Figure 7 As shown in "CS1"), the test pin of the detection chip U is connected to the sampling unit 122, and the reference pin of the detection chip U is connected to the board 121. Among them, the resistor R and capacitor C connected to each pin are conventional configurations in the related art and are not described in detail.

[0051] Optionally, the model of the detection chip U can be LS_IC_AW93208CSR. The detection chip with model LS_IC_AW93208CSR can support capacitive touch detection, and can identify single-point or multi-point touch, has high-sensitivity touch detection capabilities, can accurately detect touch operations in various environments, and has low power consumption. It can support multiple communication interfaces such as the Inter-Integrated Circuit (I2C) and serial peripheral interface (SPI), which is convenient for data exchange with the control module 13.

[0052] In one example, if Figure 8 As shown, the bone conduction earphone 1 also includes a connecting module 15, a first end of the connecting module 15 is connected to the board 121, a second end of the connecting module 15 is connected to the reference pin of the detection chip U, a third end of the connecting module 15 is connected to the sampling unit 122, and a fourth end of the connecting module 15 is connected to the test pin of the detection chip U.

[0053] For example, please refer to Figure 9 and Figure 10 As shown, the connection module 15 includes a reference channel 151 and a detection channel 152 spaced apart along the first direction AA. One end of the reference channel 151 is connected to the board 121, and the other end of the reference channel 151 is connected to the reference pin of the detection chip U (not shown in the figure). One end of the detection channel 152 is connected to the sampling unit 122 (i.e., Figure 9 The sampling matrix 1221 is shown in the figure, and the other end of the detection channel 152 is connected to the test pin of the detection chip (not shown in the figure). The sampling information collected by the sampling unit 122 will be output to the detection chip U through the detection channel 152, and the detection chip U will obtain a corresponding detection signal based on the sampling information.

[0054] For example, please refer to Figure 9 and Figure 10 As shown, the connection module 15 further includes a first grounding unit 153 and a second grounding unit 154. The first grounding unit 153 is spaced apart on a side of the reference channel 151 away from the detection channel 152, and the second grounding unit 154 is spaced apart on a side of the detection channel 152 away from the reference channel 151. Optionally, the spacing between the reference channel 151 and the detection channel 152 along the first direction AA is 0.06-0.08 mm, and the spacing between the first grounding unit 153 and the reference channel 151 along the first direction AA and the spacing between the second grounding unit 154 and the detection channel 152 along the first direction AA may be 0.24-0.32 mm, that is, the spacing between the first grounding unit 153 and the reference channel 151 and the spacing between the second grounding unit 154 and the detection channel 152 may be four times the spacing between the reference channel 151 and the detection channel 152. For example, assuming that the spacing between the reference channel 151 and the detection channel 152 along the first direction AA is 0.07 mm, the spacing between the first grounding unit 153 and the reference channel 151 along the first direction AA is 0.28 mm, and the spacing between the second grounding unit 154 and the detection channel 152 along the first direction AA is also 0.28 mm. The spacing between the reference channel 151, the detection channel 152, the first grounding unit 153, and the second grounding unit 154 can be set according to the specific dimensions of the bone conduction earphone 1, and this application does not impose any specific limitations on this.

[0055] Headphones are usually used in pairs. The bone conduction headphones 1 provided in this application can be headphones corresponding to the left ear or headphones corresponding to the right ear, that is, the matching headphones can include two bone conduction headphones 1. Both bone conduction headphones 1 are equipped with the above-mentioned module and can achieve the detection effect to avoid the problem of accidental touching of the other side when wearing or taking off one side, thereby ensuring the use and control reliability of the two bone conduction headphones 1, thereby improving the user experience.

[0056] Optionally, the two bone conduction headphones 1 can be an integrated headphone or two independent headphones, and this application does not impose any specific restrictions on this.

[0057] In summary, the detection module 14 in the bone conduction earphone 1 provided in the present application can perform real-time detection of the user's wearing status. When it is detected that the bone conduction earphone 1 is worn, the control module 13 can control the bone conduction earphone 1 to be in the play state. When it is detected that the bone conduction earphone 1 is taken off, the control module 13 can control the bone conduction earphone 1 to be in the pause state. The wearing status of the bone conduction earphone 1 can be accurately detected by the detection module 14, and the working state of the bone conduction earphone 1 can be automatically controlled and switched based on the detection signal. The response speed is fast, and the user does not need to manually press the corresponding button to realize the play or pause function, which simplifies the operation steps and thus improves the user experience.

[0058] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections thereof.

[0059] It will also be understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0060] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0061] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0062] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A bone conduction headset, characterized in that: include: FPC module; A detection module, connected to the FPC module, configured to obtain a wearing status and generate a corresponding detection signal; as well as, A control module is connected to the detection module and the FPC module, and is used to receive the detection signal from the detection module and adjust the working state of the bone conduction headset based on the detection signal.

2. The bone conduction earphone according to claim 1, characterized in that The FPC module includes: plate body; and, A sampling unit is fixed on the plate body, the sampling unit is connected to the detection module, and the detection module is used to obtain the wearing status through the sampling unit.

3. The bone conduction earphone according to claim 2, characterized in that The sampling unit comprises: A sampling matrix includes a plurality of sampling points arranged in an array on the plate, and the plurality of sampling points are connected.

4. The bone conduction earphone according to claim 3, characterized in that The sampling matrix is ​​made of copper foil.

5. The bone conduction earphone according to any one of claims 2 to 4, characterized in that: The detection module includes: A detection chip is provided, wherein the detection chip has a test pin and a reference pin, the test pin of the detection chip is connected to the sampling unit, and the reference pin of the detection chip is connected to the board.

6. The bone conduction earphone according to claim 5, characterized in that The bone conduction headset further includes: A connecting module, wherein a first end of the connecting module is connected to the board body, a second end of the connecting module is connected to the reference pin of the detection chip, a third end of the connecting module is connected to the sampling unit, and a fourth end of the connecting module is connected to the test pin of the detection chip.

7. The bone conduction earphone according to claim 6, characterized in that The connection module includes a reference channel and a detection channel spaced apart along a first direction; One end of the reference channel is connected to the board, and the other end of the reference channel is connected to the reference pin of the detection chip. One end of the detection channel is connected to the sampling unit, and the other end of the detection channel is connected to the test pin of the detection chip.

8. The bone conduction earphone according to claim 7, characterized in that: The distance between the reference channel and the detection channel along the first direction is 0.06 to 0.08 mm.

9. The bone conduction earphone according to claim 5, characterized in that The model of the detection chip is LS_IC_AW93208CSR.

10. The bone conduction earphone according to claim 1, characterized in that The bone conduction headset further includes: A housing is formed inside the housing, and the FPC module, the detection module and the control module are all located in the housing cavity.

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